*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html{
    height: 100%;
}

body {
    height: 100%;
    background-image: url(../img/cat.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    backdrop-filter: blur(5px);
    background-blend-mode: overlay;
   
   
}
.nav{
    height: 50px;
    background-color: rgba(50, 50,50, 0.4);
    color: white;
    display: flex;
    justify-content: left;
    align-items: center;
}
.nav img{
    width: 40px;
    height: 40px;
    margin-left: 30px;
    margin-right: 10px;
    border-radius: 20px;

}
.nav .spacer{
    width: 70%;
   
}
.nav a{
    color: #fff;
    text-decoration: none;
    padding: 0 10px;
}
.container{  
    width: 1000px;
    height: calc(100% - 50px);
    margin: 0 auto;
    display: flex;
    justify-content:space-between;
    
   


}
  
.container .container-left {
    height: 100%;
    width: 200px;
}
.container .container-right {
    height: 100%;
    width: 796px;
    background-color:rgba(255, 255, 255, 0.7);
    padding: 20px;
    border-radius: 10px;
    overflow:auto;
}
.card {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 30px;
    border-radius: 10px;
}
.card img{
    width: 140px;
    height: 140px;
    border-radius: 70px;
   
}
.card h3{
    text-align: center;
    padding: 5px;
}
.card a{
    display: block;
    text-align: center;
    color:#999;
    text-decoration: none;
    padding:10px 0;
}
.card .counter {
   display: flex;
     justify-content:space-around;
     padding:10px;
}
